:root {
  --bg: #000;
  --text: #f5f5f7;
  --muted: rgba(245, 245, 247, 0.72);
  --panel-bg: rgba(0, 0, 0, 0.78);
  --panel-border: rgba(255, 255, 255, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
}

body {
  color: var(--text);
  font-family: "Lato", "Helvetica Neue", Arial, sans-serif;
  font-weight: 300;
}

#site-nav {
  position: relative;
  z-index: 10000;
}

body.is-loading {
  overflow: hidden;
}

body.is-action-playback {
  overflow: hidden;
}

main {
  min-height: 100vh;
  min-height: 100svh;
}

.sequence-section {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh;
  background: var(--bg);
  overflow: hidden;
}

.sequence-canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--bg);
  transform: translateZ(0);
}

.sequence-title {
  position: absolute;
  top: clamp(104px, 14vh, 148px);
  left: 50%;
  z-index: 2;
  margin: 0;
  width: min(calc(100vw - 32px), 760px);
  font-family: "Lato", "Helvetica Neue", Arial, sans-serif;
  text-align: center;
  color: rgba(255, 255, 255, 0.96);
  font-size: clamp(1.95rem, 6vw, 4.2rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0.05em;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  text-transform: uppercase;
  opacity: 0;
  transform: translate(-50%, 24px);
  transition: opacity 0.45s ease, transform 0.45s ease;
  pointer-events: none;
  text-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  will-change: opacity, transform;
}

.sequence-title.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.sequence-continue {
  position: absolute;
  left: 50%;
  bottom: clamp(26px, 6vh, 52px);
  z-index: 2;
  margin: 0;
  width: min(calc(100vw - 32px), 320px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  color: rgba(255, 255, 255, 0.96);
  font-family: "Lato", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(0.8rem, 2vw, 0.95rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-align: center;
  text-transform: uppercase;
  text-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: translate(-50%, 18px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
  will-change: opacity, transform;
}

.sequence-continue.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.sequence-continue-copy {
  display: block;
  margin: 0;
}

.sequence-continue-button {
  min-width: min(100%, 220px);
  min-height: 46px;
  padding: 14px 22px;
  border: 1px solid rgba(255, 240, 214, 0.5);
  border-radius: 999px;
  background:
    radial-gradient(circle at 78% 50%, rgba(244, 169, 77, 0.55), transparent 34%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.42), rgba(122, 89, 48, 0.34) 56%, rgba(255, 255, 255, 0.38));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    0 10px 28px rgba(66, 40, 8, 0.28);
  color: rgba(255, 249, 240, 0.98);
  font: inherit;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  touch-action: manipulation;
  backface-visibility: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease, opacity 0.25s ease;
}

.sequence-continue-button:hover,
.sequence-continue-button:focus-visible {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.34),
    0 16px 34px rgba(66, 40, 8, 0.36);
  filter: saturate(1.08);
}

.sequence-continue-button:focus-visible {
  outline: 2px solid rgba(255, 245, 225, 0.88);
  outline-offset: 2px;
}

.sequence-continue-button:disabled {
  cursor: default;
  opacity: 0.78;
}

.sequence-actions {
  position: absolute;
  left: 50%;
  bottom: clamp(68px, 12vh, 124px);
  z-index: 3;
  display: flex;
  gap: clamp(12px, 3vw, 20px);
  width: min(calc(100vw - 32px), 360px);
  opacity: 0;
  transform: translate(-50%, 28px);
  transition: opacity 0.45s ease, transform 0.45s ease;
  pointer-events: none;
  will-change: opacity, transform;
}

.sequence-actions.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.sequence-action-button {
  flex: 1 1 0;
  min-height: 46px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 240, 214, 0.46);
  border-radius: 999px;
  background:
    radial-gradient(circle at 78% 50%, rgba(244, 169, 77, 0.55), transparent 34%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.42), rgba(122, 89, 48, 0.34) 56%, rgba(255, 255, 255, 0.38));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    0 10px 28px rgba(66, 40, 8, 0.28);
  color: rgba(255, 249, 240, 0.98);
  font-family: "Lato", "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  touch-action: manipulation;
  backface-visibility: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.sequence-action-button:hover,
.sequence-action-button:focus-visible {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.34),
    0 16px 34px rgba(66, 40, 8, 0.36);
  filter: saturate(1.08);
}

.sequence-action-button:focus-visible {
  outline: 2px solid rgba(255, 245, 225, 0.88);
  outline-offset: 2px;
}

.sequence-action-button:disabled {
  cursor: default;
  opacity: 0.78;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 10020;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.92);
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.loading-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-panel {
  min-width: min(260px, 100%);
  padding: 24px 22px;
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  background: var(--panel-bg);
  text-align: center;
  backdrop-filter: blur(10px);
}

@media (pointer: coarse) {
  .sequence-continue-button,
  .sequence-action-button {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

.loading-percentage {
  font-size: clamp(2.8rem, 10vw, 5rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.06em;
}

.loading-copy {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

@media (max-width: 640px) {
  .loading-panel {
    padding: 22px 18px;
  }

  .sequence-title {
    top: max(92px, calc(env(safe-area-inset-top, 0px) + 68px));
    width: min(calc(100vw - 24px), 520px);
    font-size: clamp(1.45rem, 6.6vw, 2.5rem);
    letter-spacing: 0.03em;
  }

  .sequence-actions {
    bottom: max(68px, calc(env(safe-area-inset-bottom, 0px) + 42px));
    width: min(calc(100vw - 24px), 336px);
    gap: 10px;
  }

  .sequence-continue {
    bottom: max(22px, calc(env(safe-area-inset-bottom, 0px) + 18px));
    width: min(calc(100vw - 24px), 300px);
    font-size: clamp(0.76rem, 3.6vw, 0.9rem);
    letter-spacing: 0.08em;
  }

  .sequence-continue-button {
    min-height: 44px;
    padding: 12px 18px;
    font-size: 0.95rem;
  }

  .sequence-action-button {
    min-height: 44px;
    padding: 12px 14px;
    font-size: 0.95rem;
  }
}